package servlets;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    public LogoutServlet() {
        super();
    }

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processarLogout(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processarLogout(request, response);
	}

	public void processarLogout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		HttpSession session = request.getSession();
		String url = request.getContextPath();
		
		request.setCharacterEncoding("UTF-8");
		
		session.removeAttribute("usuario");
		session.invalidate();		
		response.setContentType("text/html;charset=UTF-8");  
		
		response.sendRedirect(url + "/login.jsp");
	}
	
}
